BRAT BRAN INSTALLATION, USER AND MAINTENANCE MANUAL

Transcription

1 INSTALLATION, USER AND MAINTENANCE MANUAL EN Air/water chillers and heat pumps with axial-flow fans with and without pump assemblies BRAT BRAN

2 INDEX INDICE U General warnings 3 A Checking and starting up the unit 19 U Waiver of liability 3 A LED and display 20 U Fundamental safety rules 3 I A Displaying alarms 28 I Receiving, handling and installing the 4 product Characteristics 5 Dimensioned drawings 6 Water connections 6 Electrical connections 10 Mains power supply connections 12 Installer connections 12 General technical data 14 U A A A A Peak limiter alarm signals 29 Operating characteristics 30 Shutting down for long periods 32 Routine maintenance 32 Special maintenance 32 Disposal 32 Troubleshooting 33 Useful information 35 U I A Operating limits 16 Pressure drop and pressure head available 17 to system The following symbols are used in some parts of this publication and inside the unit: U User Important Danger high temperatures I Installer Prohibition A Assistance Danger voltage The manufacturer reserves the right to modify the data in this manual without warning. ENVIRONMENTAL INFORMATION: This unit contains fluorinated greenhouse gases covered by the Kyoto Protocol. The maintenance and disposal operations must only be carried out by qualified personnel. 2 BRAT2 - BRAN2 EN

3 GENERAL WARNINGS These appliances have been designed to chill and/or heat water and must be used in applications compatible with their performance characteristics; these appliances are designed for residential or similar applications. Incorrect installation, regulation and maintenance or improper use absolve the manufacturer from all liability, whether contractual or otherwise, for damage to people, animals or things. Only those applications specifically indicated in this list are permitted Read this manual carefully. All work must be carried out by qualified personnel in conformity with legislation in force in the country concerned. The warranty is void if the above instructions are not respected and if the unit is started up for the first time without the presence of personnel authorised by the Company (where specified in the supply contract) who should draw up a start-up report. U The documents supplied with the unit must be consigned to the owner who should keep them carefully for future consultation in the event of maintenance or service. When the items are consigned by the carrier, check that the packaging and the unit are undamaged. If damage or missing components are noted, indicate this on the delivery note. A formal complaint should be sent via fax or registered post to the After Sales Department within eight days from the date of receipt of the items. All repair or maintenance work must be carried out by the Company s Technical Service or qualified personnel following the instructions in this manual. Do not modify or tamper with the appliance as this may create situations of danger; in such cases the manufacturer of the appliance is not liable for any damage caused. WAIVER OF LIABILITY This publication is the sole property of Climaveneta. Any reproduction or disclosure of such is strictly prohibited without the written authorisation of Climaveneta. This document has been prepared with maximum care and attention paid to the content shown. Nonetheless, Climaveneta waives all liability deriving from the use of such document. Read this document carefully. U All work must be performed, components selected and materials used professionally and in complete accordance with the legislation in force in material in the country concerned, and considering the operating conditions and intended uses of the system, by qualified personnel. FUNDAMENTAL SAFETY RULES U When operating equipment involving the use of electricity and water, a number of fundamental safety rules must be observed, namely: The unit must not be used by children or by unfit persons without suitable supervision. Do not touch the unit with bare feet or with wet or damp parts of the body. Never perform any cleaning operations before having disconnected the unit from the mains power supply. Do not modify safety or control devices without authorisation and instructions from the manufacturer. Do not pull, detach or twist the electrical cables coming from the unit, even when disconnected from the mains electricity supply. Do not open doors or panels providing access to the internal parts of the unit without first ensuring that the mains switch is in the off position. Do not introduce pointed objects through the air intake and outlet grills. Do not dispose of, abandon or leave within reach of children packaging materials (cardboard, staples, plastic bags, etc.) as they may represent a hazard. The BRAT/N appliances are supplied without the main switch. Respect safety distances between the unit and other equipment or structures. Guarantee adequate space for access to the unit for maintenance and/or service operations (see the figure on page 5). Power supply: the size of the electrical cables must be adequate for the power of the unit and the power supply voltage must correspond with the value indicated on the respective units. All units must be earthed in conformity with legislation in force in the country concerned. Some terminals in the electrical panel may be powered even after the unit is disconnected. Make sure power is not connected before proceeding. Water connections should be carried out as indicated in the instructions to guarantee correct operation of the unit. Add glycol to the water circuit if the unit is not used during the winter or the circuit is not emptied. Handle the unit with the utmost care (see weight distribution table) to avoid damage. Power supply to the unit must be disconnected using a switch with suitable characteristics, to be supplied and installed by the installer. BRAT2 - BRAN2 EN 3

4 H RECEIVING, HANDLING AND INSTALLING THE PRODUCT The chillers are supplied accompanied by: - installation, user and maintenance manual; - CE declaration; CHOICE OF INSTALLATION SITE Before installing the unit, agree with the customer the site where it will be installed, taking the following points into consideration: Check that the fixing points are adequate to support the weight of the unit; Pay scrupulous respect to safety distances between the unit and other equipment or structures to ensure that air entering the unit and discharged by the fans is free to circulate. HANDLING AND POSITIONING The unit should always be handled by qualified personnel using equipment adequate for the weight of the chiller. Before handling the unit, check the capacity of the lift equipment used, respecting the instructions on the packaging. To move the unit horizontally, make appropriate use of a lift truck or similar, bearing in mind the weight distribution of the unit. To lift the unit, insert tubes long enough to allow positioning of the lifting slings and safety pins in the special feet on the unit. For the sizes of these tubes, see the figures shown in the corresponding section. To avoid the slings damaging the unit, place protection between the slings and the unit. Position the unit in the site indicated by the customer. Place either a layer of rubber (min. thickness 10 mm) or vibration damper feet (optional) between the base and support surface. Fix the unit, making sure it is level and that there is easy access to water and electrical components. If the site is exposed to strong winds, fix the unit adequately using tie rods if necessary. If a heat pump unit is being installed, make sure the condensate is drained using the drain hose supplied as standard. Prevent leaves, branches or snow from accumulating around the unit. These could reduce the efficiency of the unit. The installation, user and maintenance manual is an integral part of the unit and should therefore be read and kept carefully. It is recommended that the packaging should not be removed until the unit is located in the installation site. During transport, the chiller should be kept in a vertical position The weight of the chiller is biased towards the compressor side (side of the packaging with the barcode, see the figure at the foot of the page). Do not dispose of packaging materials in the environment or leave them within reach of children as they may represent a hazard. Barcode (compressor side) L P BRAT(N) : Ø 22mm BRAT(N) : Ø 25mm BRAT2 Dimensions and weight with standard packaging Size 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T Dimension L mm Dimension P mm Dimension H mm Weight Kg BRAN2 Dimensions and weight with standard packaging Size 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T Dimension L mm Dimension P mm Dimension H mm Weight Kg BRAT2 Dimensions and weight with wooden crate Size 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T Dimension L mm Dimension P mm Dimension H mm Weight difference Kg BRAN2 Dimensions and weight with wooden crate Size 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T Dimension L mm Dimension P mm Dimension H mm Weight difference Kg BRAT2 - BRAN2 EN

5 CHARACTERISTICS The BRAT(N)2 appliances are air-water units operating on R-410A and refrigerant are suitable for outdoor installation. The units are CE marked, as established by the EU directives, including the latest amendments, and the corresponding approximated national legislation. They are factory tested and on site installation is limited to water and electrical connections Electrical panel 2 Control panel 3 Heat exchanger, side 4 Low pressure switch 5 High pressure switch 6 Scroll compressor 7 Filter 8 Thermostatic valve 9 Axial-flow fan 10 Heat exchanger, outdoor side 11 Pump (accessory) 12 Liquid receiver (only BRAN2) 13 Expansion vessel (models WITH HYDRONIC UNIT only) 14 Reversing valve (only BRAN2) BRAT2 - BRAN2 EN 5

6 DIMENSIONED DRAWINGS I C W1 = E = W2 B 900 W4 A W D Dimension 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T A mm B mm C mm D mm E mm Weight distribution BRAT2 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T W1 kg W2 kg W3 kg W4 kg Total in operation kg Weight distribution BRAN2 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T W1 kg W2 kg W3 kg W4 kg Total in operation kg WATER CONNECTIONS The choice and installation of components is the responsibility of the installer who should follow good working practice and current legislation. Construction of a bypass is recommended to enable the pipes to be washed through without having to disconnect the unit (see drain valves). The connection piping should be supported in such a way as to avoid it weighing on the unit. The following devices must be installed on the water circuit: 1. Two pressure gauges with a suitable scale (intake and outlet); 2. Two vibration damper joints (intake and outlet); 3. Two shut off valves (normal in intake and calibrating in outlet); 4. A flow switch on the unit outlet to the system circuit (compulsory). The flow switch must be calibrated by the installer to a value equal to 70% of rated flow. 5. Two thermometers (intake and outlet). 6. An intake filter must be installed as close as possible to the evaporator and positioned to allow easy access for routine maintenance. 500 micron filter mesh. 7. All the pipes must be insulated with suitable material to prevent the formation of condensate and heat loss. The insulating material must be a vapour barrier. Make sure that the control and shut-off devices protrude from the insulation. 8. At the lowest points in the system, install drain valves for easy emptying. 9. At the highest points in the system, install automatic or manual air vent valves. Failure to install the flow switch will mean the heat exchanger is not protected in the event of no flow of liquid. Climaveneta cannot be held liable for any damage to the unit and/or the system following the failure to install these devices or the filter. The correct operation of the components that help ensure the safety of the appliance and the system should be checked regularly. Specifically, this involves cleaning the filters and checking the operation of the flow switches installed. Water flow to the chiller unit must conform to the values shown in the section on General Technical Data. The flow of water must be maintained constant during operation. The water content of the unit must be such as to avoid disturbing operation of the refrigerant circuits. 6 BRAT2 - BRAN2 EN

7 Minimum system water content Size 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T Minimum water content BRAT2 l Minimum water content BRAN2 l Expansion vessel size Size 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T Expansion vessel BRAT2 l Expansion vessel BRAN2 l Safety valve calibration Size 0021M-T 0025M-T 0031M-T 0041M-T 0051T 0061T 0071T 0091T 0101T 0121T Safety valve l System water circuit connection diagram, BRAT2 version WITHOUT HYDRONIC KIT FACTORY CONNECTED INSTALLER CONNECTIONS UTILITY RETURN UTILITY OUTLET 1 PRESSURE GAUGE 2 VIBRATION-ISOLATING JOINT 3 SHUT-OFF VALVE 4 CALIBRATING VALVE 5 FLOW SWITCH 6 THERMOMETER 7 CIRCULATOR PUMP 8 SAFETY VALVE 9 EXPANSION VESSEL 10 MESH FILTER 11 FILL/TOP-UP 12 TEMPERATURE PROBE 13 DIFFERENTIAL PRESSURE SWITCH 14 DRAIN/CHEMICAL WASHING VALVE 15 SYSTEM VENT System water circuit connection diagram, BRAT2 version WITH HYDRONIC KIT FACTORY CONNECTED INSTALLER CONNECTIONS UTILITY OUTLET 15 UTILITY RETURN 1 PRESSURE GAUGE 2 VIBRATION-ISOLATING JOINT 3 SHUT-OFF VALVE 4 CALIBRATING VALVE 5 FLOW SWITCH 6 THERMOMETER 7 CIRCULATOR PUMP 8 SAFETY VALVE 9 EXPANSION VESSEL 10 MESH FILTER 11 FILL/TOP-UP 12 TEMPERATURE PROBE 13 DIFFERENTIAL PRESSURE SWITCH 14 DRAIN/CHEMICAL WASHING VALVE 15 SYSTEM VENT System water circuit connection diagram, BRAN2 version WITHOUT HYDRONIC KIT FACTORY CONNECTED INSTALLER CONNECTIONS UTILITY RETURN UTILITY OUTLET 1 PRESSURE GAUGE 2 VIBRATION-ISOLATING JOINT 3 SHUT-OFF VALVE 4 CALIBRATING VALVE 5 FLOW SWITCH 6 THERMOMETER 7 CIRCULATOR PUMP 8 SAFETY VALVE 9 EXPANSION VESSEL 10 MESH FILTER 11 FILL/TOP-UP 12 TEMPERATURE PROBE 13 DIFFERENTIAL PRESSURE SWITCH 14 DRAIN/CHEMICAL WASHING VALVE 15 SYSTEM VENT BRAT2 - BRAN2 EN 7

8 System water circuit connection diagram, BRAN2 version WITH HYDRONIC KIT FACTORY CONNECTED INSTALLER CONNECTIONS UTILITY OUTLET 15 UTILITY RETURN 1 PRESSURE GAUGE 2 VIBRATION-ISOLATING JOINT 3 SHUT-OFF VALVE 4 CALIBRATING VALVE 5 FLOW SWITCH 6 THERMOMETER 7 CIRCULATOR PUMP 8 SAFETY VALVE 9 EXPANSION VESSEL 10 MESH FILTER 11 FILL/TOP-UP 12 TEMPERATURE PROBE 13 DIFFERENTIAL PRESSURE SWITCH 14 DRAIN/CHEMICAL WASHING VALVE 15 SYSTEM VENT The chillers must be provided with a filling/top-up system connected to the return line and a drain cock in the lowest part of the installation. Installations containing antifreeze or covered by specific legislation must be fitted with water circuit disconnectors. The manufacturer is not liable for obstruction, breakage or noise resulting from the failure to install filters or vibration dampers. Particular types of water used for filling or topping up must be treated with appropriate treatment systems. For reference values, see the table. Risk of freezing The unit must be prevented from freezing at outside air temperatures around 0 C. The following are recommended: use suitable percentages of antifreeze (see Ethylene glycol solutions ) protect the piping with heating sheaths, empty the system, making sure no water remains at the lowest points in the circuit or there are closed valves where water may stagnate. It is recommended to use non-toxic food grade antifreeze, compliant with the standards in force in the countries where the unit is used, if domestic hot water production is also featured. The antifreeze used must be corrosion inhibited and compatible with the water circuit components. Ethylene glycol solutions Water and ethylene glycol solutions used as a heat carrier in the place of water reduce the performance of the unit. Multiply the performance figures by the values given in the following table. The heat pumps must be fitted with a filling/top-up system connected to the return line and a drain valve in the lowest part of the system. Systems containing antifreeze or covered by specific legislation must be fitted with low-loss headers. cpf cq cdp Freezing point ( C) Percentage of ethylene glycol by weight 12% 0,985 1,02 1,07 cpf: cooling capacity correction factor cq: flow rate correction factor cdp: pressure drop correction factor 20% 0,98 1,04 1,11 28% 0,974 1,075 1,18 35% 0,97 1,11 1,22 40% 0,965 1,14 1,24 Water quality The water used in the system and domestic hot water circuits must comply with the following characteristics: PH 6-8 Electrical conductivity less than 200 mv/cm (25 C) Chlorine ions less than 50 ppm Sulphuric acid ions less than 50 ppm Total iron less than 0.3 ppm Alkalinity M less than 50 ppm Total hardness less than 50 ppm Sulphur ions none Ammonia ions none Silicon ions less than 30 ppm 8 BRAT2 - BRAN2 EN

9 Fouling factors The performance data given refer to conditions with clean evaporator plates (fouling factor = 1). For different fouling factors, multiply the figures in the performance tables by the coefficient given in the following table. Fouling factors (m 2 C/W) f1 4,4 x ,86 x ,72 x ,96 0,93 f1: capacity correction factor fk1: compressor power input correction factor fx1: total power input correction factor Evaporator fk1-0,99 0,98 fx1-0,99 0,98 SIZE AND POSITIONING OF CONNECTIONS, BRAT2 AND BRAN2 BRAT2 Safety valve BRAN2 Safety valve IN OUT B C OUT B C IN A D A D Dimensions A mm B mm C mm D* mm Water connections in/out, male Ø /4 1 1/4 1 1/4 1 1/4 *D Safety valve connector position, only on the models with hydronic kit Condensate drain In heating mode the unit produces a significant quantity of condensate, which must be suitably drained. Proceed as follows: Connect the unit condensate drain Make sure the drain hose has a incline of at least 2 cm/m, without obstructions or choking. Connect the condensate drain hose to a rainwater drain. Do not connect to the sewage system as odours may be sucked up if the water in the drain trap evaporates. After connecting, check correct drainage of the condensate by pouring water into the pan. If necessary, suitably insulate the condensate drain hose. Condensate drainage must not cause problems to objects or people. If the outside air temperature is less than 0 C, the condensate may freeze. The unit comes with frost protection for the condensate collection basin inside the unit. Use hot wires on the condensate drain hose downstream of the unit to protect against frost. BRAT2 - BRAN2 EN 9

10 FILLING THE SYSTEM - Before filling, check that the system drain valve is closed. - Open all system and terminal air vents. - Open system shut off valves. - Start filling by slowly opening the system water fill cock outside the unit. - When water begins to leak out of the terminal air vent valves, close them and continue filling until the pressure gauge indicates a pressure of 1.5 bar. The system must be filled to a pressure of between 1 and 2 bars. It is recommended that this operation be repeated after the unit has been operating for a number of hours. The pressure of the system should be checked regularly and if it drops below 1 bar, the water content should be topped-up. Check the tightness of the joints. EMPTYING THE SYSTEM - Before emptying, place the mains switch in the off position. - Make sure the system fill/top-up water cock is closed. - Open the drain cock outside the unit and all the system and terminal air vent valves. If the fluid in the circuit contains antifreeze, it should not be allowed to drain freely, as it is pollutant.it should be collected for possible reuse.when draining after heat pump operation, take care as the water may be hot (up to 50 ). ELECTRICAL CONNECTIONS The BRAT2 and BRAN2 leave the factory already wired, and require the installation of a circuit breaker, a lockable mains disconnect switch for the connection to the mains power supply, and the connection of the flow switch to the corresponding terminals. All the above operations must be carried out by qualified personnel in compliance with the legislation in force. For all electrical work, refer to the electrical wiring diagrams in this manual. It is also recommended to check that: - The characteristics of the mains electricity supply are adequate for the power ratings indicated in the electrical specifications below, also bearing in mind the possible use of other equipment at the same time. The devices on the unit must be lockable. An efficient earth connection is obligatory. The manufacturer cannot be held liable for any damage caused by the failure to correctly earth the unit. In the case of three phase units, ensure the phases are connected correctly. Do not use water pipes to earth the unit. Power to the unit must be turned on only after installation work (water and electrical) has been completed. All the electrical connections must be performed by qualified personnel according to the relevant standards in force in the country concerned. Respect instructions for connecting phase, neutral and earth conductors. The power line should be fitted upstream with a suitable device to protect against short-circuits and leakage to earth, isolating the installation from other equipment. Voltage must be within a tolerance of ±10% of the rated power supply voltage for the unit (for three phase units, the unbalance between the phases must not exceed 2%). If these parameters are not respected, contact the electricity supply company.for electrical connections, use double insulation cable in conformity with legislation in force in the country concerned. A circuit breaker and a lockable mains disconnect switch, in compliance with the CEI-EN standards (contact opening of at least 3mm), with adequate switching and residual current protection capacity based on the electrical data table shown below, must be installed as near as possible to the appliance. 10 BRAT2 - BRAN2 EN

11 ELECTRICAL DATA, BRAT2 AND BRAN2 WITHOUT HYDRONIC KIT Size Power supply Maximum values Fuses (5x20T 250V) (V-Ph-Hz) FLA [A] FLI [kw] SA [A] SA LIM [A] FU1 FU2 FU3 FU4 BRAT2 - BRAN N-50 16,6 3,1 61,6 27,6 4A 1,25A 2A - BRAT2 - BRAN N-50 19,6 3,8 82,6 37,6 4A 1,25A 2A - BRAT2 - BRAN N-50 23,6 4,7 97,6 44,6 4A 1,25A 2A - BRAT2 - BRAN N-50 27,6 6,0 131,3 46,3 4A 1,6A 2A - BRAT2 - BRAN N-50 6,1 3,1 32,6 18,6 4A 1,25A 2A - BRAT2 - BRAN N-50 6,6 3,6 35,6 19,6 4A 1,25A 2A - BRAT2 - BRAN N-50 8,6 4,4 48,6 26,6 4A 1,25A 2A - BRAT2 - BRAN N-50 10,6 6,0 65,3 36,3 4A 1,6A 2A - BRAT2 - BRAN N-50 12,4 6,1 65,3 36,3 4A 1,6A 2A - BRAT2 - BRAN N-50 15,6 7,4 75,3 42,3 4A 1,6A 2A - BRAT2 - BRAN N-50 16,8 8,8 102,3 57,3 4A 1,6A 1A 1A BRAT2 - BRAN N-50 18,8 10,0 129,3 71,3 4A 1,6A 1A 1A BRAT2 - BRAN N-50 22,2 11,7 140,9 77,9 4A 3,15A 1A 1A BRAT2 - BRAN N-50 31,6 14,7 141,9 78,9 4A 3,15A 1A 1A F.L.I. Maximum power input F.L.A. Maximum current input S.A. Start-up current S.A. LIM Peak current with peak limiter Maximum values for sizing the protection switches and power supply cables ELECTRICAL DATA, BRAT2 AND BRAN2 WITH HYDRONIC KIT Size Power supply Maximum values Fuses (5x20T 250V) (V-Ph-Hz) FLA [A] FLI [kw] SA [A] SA LIM [A] FU1 FU2 FU3 FU4 BRAT2 - BRAN N-50 17,2 3,1 62,2 28,2 1,25 1,25A 2A - BRAT2 - BRAN N-50 20,2 3,9 83,2 38,2 1,25 1,25A 2A - BRAT2 - BRAN N-50 24,2 4,8 98,2 45,2 1,25 1,25A 2A - BRAT2 - BRAN N-50 28,6 6,1 132,2 47,2 1,25 1,6A 2A - BRAT2 - BRAN N-50 6,7 3,1 33,2 19,2 1,25 1,25A 2A - BRAT2 - BRAN N-50 7,2 3,7 36,2 20,2 1,25 1,25A 2A - BRAT2 - BRAN N-50 9,2 4,5 49,2 27,2 1,25 1,25A 2A - BRAT2 - BRAN N-50 11,6 6,1 66,2 37,2 1,25 1,6A 2A - BRAT2 - BRAN N-50 13,4 6,2 66,2 37,2 1,25 1,6A 2A - BRAT2 - BRAN N-50 16,6 7,5 76,2 43,2 1,25 1,6A 2A - BRAT2 - BRAN N-50 18,1 9,0 103,6 58,6 1,6 1,6A 1A 1A BRAT2 - BRAN N-50 20,1 10,2 130,6 72,6 1,6 1,6A 1A 1A BRAT2 - BRAN N-50 23,5 12,0 142,2 79,2 1,6 3,15A 1A 1A BRAT2 - BRAN N-50 32,9 15,0 143,2 80,2 1,6 3,15A 1A 1A F.L.I. Maximum power input F.L.A. Maximum current input S.A. Start-up current S.A. LIM Peak current with peak limiter Maximum values for sizing the protection switches and power supply cables BRAT2 - BRAN2 EN 11

12 MAINS POWER SUPPLY CONNECTIONS Before connecting the unit to the power supply, makes sure that switch QF1 is open, suitably padlocked and marked. Remove the inspection panel by unscrewing the screws. Use cable gland A for the main electrical power cable and cable gland B for other external cables to be connected by the installer. A B Identify the terminals used for electrical connections on the layout drawing shown in this manual. Make the connections as shown on the wiring diagram enclosed with the product. Replace the covers on the electrical panel and the closing panel. Make sure that all the covers removed to make the electrical connections have been replaced before powering up the unit. Position the main switch QF1 (outside the unit) in the ON position. INSTALLER CONNECTIONS All terminals referred to in the explanations below are to be found on the terminal block inside the electrical panel and described as installer terminals (see the wiring diagram enclosed with the product). REMOTE ON/OFF (SA1) To use a remote on/off device, an external contactor must be connected to installer terminals 14 and 15, setting parameter CL42 to -1 (CL42=-1). For timed operation, connect a daily or weekly timer between terminals 14 and 15. REMOTE ALARM (RD1) For remote display of unit shut-down, an audible or visual alarm warning device can be connected between terminals 12 and 13. Connect the phase to terminal 13 and the alarm signal device between terminal 13 and the neutral (maximum load applicable 500 ma at 24 V). REMOTE COOLING/HEATING CHANGEOVER (SA2) To use a remote cooling/heating changeover device, connect the contact of the device to installer terminals 16 and 17. To activate the device, proceed as follows: - From the HSW15 control panel select parameter CL43 and set it to the value +3 (contact closed = cooling, contact open = heating) or -3 (contact closed = heating, contact open = cooling) COMPRESSOR ON SIGNAL (GN1) For remote display of compressor operating status, an audible or visual alarm warning device can be connected between terminals 10 and 11. Connect the phase to terminal 11 and the signal device between terminal 10 and the neutral. 12 BRAT2 - BRAN2 EN

13 / OUTSIDE AIR PROBE (BT3) (Accessory) The outside air probe allows the system water temperature set point to be compensated during heating or cooling operation. Installation instructions The outside air probe must be installed: outside of the home not in direct sunlight, away from flue gas discharges, air outlets, or doors and windows. on a perimeter wall facing north/north-west at a minimum height of 2.5 metres above the ground or at most half way up the house. H 1 2H min2,5 m N-W N Mounting method: Open the cover of the sensor. Attach a probe to the wall and the correct position as described above. For the electrical connections see Connection diagram. Re-place the cover of the sensor. TECHNICAL DATA Sensing element NTC 10Kohm ± 1% (25 C) Degree of protection IP65 Perm. ambient / carriage temperature -50 C C Measuring range -50 C C Materials PA 15% GK, Colour RAL 9010 BT REMOTE KEYPAD KIT (A5) (Accessory) The remote keypad kit can be used to display all unit functions and access the parameters of the electronic board from a point located at some distance from the unit itself. It consists of a remote control module. To install the kit, proceed as follows: - access the unit s electrical panel after having disconnected the power supply; - connect the remote control module with 3 wires to terminals 22, 23 and 24 on the installer terminal block: - terminal 22 connected to the GND terminal on the module; - terminal 23 connected to the Signal terminal on the module; - terminal 24 connected to the +12V DC terminal on the module; FLOW SWITCH CONNECTION (F3) The system flow switch must be connected to terminals 18 and 19. If this is not connected, the unit will not be able to operate and the controller will display alarm code ER20 (see "Displaying alarms"). BRAT2 - BRAN2 EN 13

14 GENERAL TECHNICAL DATA U BRAT2 without hydronic kit Cooling capacity 1 [kw] 7,71 9,50 11,5 15,0 7,70 9,0 11,64 15,7 17,9 20,5 25,1 28,4 35,1 40,6 Power consumption 1 [kw] 2,18 2,71 3,73 4,44 2,11 2,51 3,49 4,61 4,97 5,87 7,53 9,14 9,95 12,9 EER 1 3,54 3,50 3,09 3,39 3,65 3,58 3,34 3,40 3,61 3,50 3,34 3,11 3,53 3,15 Cooling capacity 2 [kw] 5,74 7,03 8,68 11,4 5,72 7,10 8,76 11,8 13,3 15,6 19,0 21,6 26,6 31,5 Power consumption 2 [kw] 2,10 2,60 3,53 4,16 2,06 2,46 3,24 4,32 4,78 5,38 6,81 8,24 9,08 11,9 EER 2 2,73 2,70 2,46 2,74 2,77 2,89 2,70 2,74 2,79 2,89 2,79 2,62 2,93 2,64 ESEER 1 3,31 3,32 3,06 3,21 3,43 3,57 3,26 3,30 3,18 3,39 3,25 3,08 3,42 3,11 Flow-rate 1 m 3 /h 1,33 1,63 1,98 2,59 1,32 1,55 2,00 2,70 3,09 3,53 4,32 4,89 6,04 6,99 Pressure drop 1 kpa Flow-rate 2 m 3 /h 0,99 1,21 1,49 1,96 0,98 1,22 1,51 2,04 2,29 2,68 3,27 3,71 4,57 5,42 Pressure drop 2 kpa Sound power 4 [dba] Power supply V-N/Ph-Hz 230-1N N-50 No. of compressors No. of circuits Type of compressor Scroll No. of fans Air flow-rate 1 [m 3 /h] No. of system heat exchangers Type of system heat exchanger PLATE System water heat exchanger content l (1) outside air 35 C evaporator water IN/OUT 23/18 C (2) outside air 35 C evaporator water IN/OUT 12/7 C (3) maximum and minimum operating pressure refer to activation of the pressure switches (4) sound power based on measurements performed in accordance with ISO 9614 and Eurovent 8/1 Performance in accordance with EN 14511:2013 BRAT2 with hydronic kit Cooling capacity 1 [kw] 7,76 9,56 11,6 15,1 7,75 9,1 11,70 15,8 18,0 20,7 25,3 28,6 35,3 40,9 Power consumption 1 [kw] 2,10 2,62 3,63 4,30 2,03 2,43 3,38 4,49 4,81 5,73 7,31 8,94 9,67 12,6 EER 1 3,69 3,65 3,20 3,51 3,82 3,73 3,46 3,52 3,74 3,61 3,46 3,20 3,65 3,24 Cooling capacity 2 [kw] 5,77 7,08 8,73 11,5 5,75 7,15 8,81 11,9 13,4 15,7 19,1 21,7 26,8 31,8 Power consumption 2 [kw] 2,05 2,54 3,44 4,09 2,01 2,39 3,16 4,23 4,69 5,27 6,63 8,07 8,87 11,8 EER 2 2,82 2,79 2,54 2,81 2,86 2,99 2,79 2,81 2,86 2,98 2,88 2,69 3,02 2,70 ESEER 1 3,43 3,46 3,16 3,31 3,56 3,73 3,37 3,40 3,29 3,51 3,36 3,17 3,53 3,20 Flow-rate 1 m 3 /h 1,33 1,64 2,00 2,60 1,33 1,56 2,01 2,72 3,10 3,56 4,35 4,92 6,07 7,03 Available pressure head 1 kpa Flow-rate 2 m 3 /h 0,99 1,22 1,50 1,98 0,99 1,23 1,52 2,05 2,30 2,70 3,29 3,73 4,61 5,47 Available pressure head 2 kpa Sound power [dba] Power supply V-N/Ph-Hz 230-1N N-50 No. of compressors No. of circuits Type of compressor Scroll No. of fans Air flow-rate [m 3 /h] No. of system heat exchangers Type of system heat exchanger PLATE System water heat exchanger content l (1) outside air 35 C evaporator water IN/OUT 23/18 C (2) outside air 35 C evaporator water IN/OUT 12/7 C (3) maximum and minimum operating pressure refer to activation of the pressure switches (4) Sound power based on measurements performed in accordance with ISO 9614 and Eurovent 8/1 Performance in accordance with EN 14511: BRAT2 - BRAN2 EN

15 GENERAL TECHNICAL DATA U BRAN2 without hydronic kit Heating capacity 1 [kw] 6,76 8,37 10,5 12,9 6,73 8,3 10,00 13,4 14,8 17,3 21,5 24,7 29,7 35,9 Power consumption 1 [kw] 2,31 2,93 3,57 4,50 2,30 2,78 3,31 4,63 4,79 5,73 6,81 7,84 9,49 11,3 COP 1 2,93 2,86 2,93 2,87 2,93 2,98 3,02 2,89 3,09 3,02 3,16 3,15 3,13 3,17 Cooling capacity 2 [kw] 4,81 5,89 7,29 9,6 4,80 5,99 7,35 10,0 11,1 13,0 15,9 18,4 22,3 27,1 Power consumption 2 [kw] 2,02 2,49 3,36 3,95 1,98 2,36 3,06 4,09 4,53 5,09 6,40 7,80 8,51 11,3 EER 2 2,38 2,37 2,17 2,42 2,43 2,54 2,40 2,43 2,45 2,56 2,49 2,36 2,62 2,39 ESEER 1 2,89 2,92 2,70 2,86 3,00 3,14 2,88 2,94 2,78 3,00 2,89 2,77 3,05 2,83 Flow-rate 1 m 3 /h 1,16 1,44 1,80 2,22 1,16 1,43 1,72 2,30 2,55 2,98 3,70 4,25 5,11 6,17 Pressure drop 1 kpa Flow-rate 2 m 3 /h 0,83 1,01 1,25 1,64 0,83 1,03 1,26 1,71 1,91 2,24 2,74 3,16 3,84 4,66 Pressure drop 2 kpa Sound power 4 [dba] Power supply V-N/Ph-Hz 230-1N N-50 No. of compressors No. of circuits Type of compressor Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll No. of fans Air flow-rate 1 [m 3 /h] No. of system heat exchangers Type of system heat exchanger PLATE System water heat exchanger content l (1) outside air 7 C; condenser water in/out 40/45 C (2) outside air 35 C; evaporator water IN/OUT 12/7 C (3) maximum and minimum operating pressure refer to activation of the pressure switches (4) Sound power based on measurements performed in accordance with ISO 9614 and Eurovent 8/1 Performance in accordance with EN 14511:2013 BRAN2 with hydronic kit Heating capacity 1 [kw] 6,72 8,32 10,4 12,8 6,68 8,2 9,99 13,3 14,8 17,2 21,4 24,5 29,4 35,7 Power consumption 1 [kw] 2,24 2,85 3,47 4,38 2,23 2,70 3,23 4,54 4,68 5,60 6,65 7,61 9,27 11,1 COP 1 3,00 2,92 3,00 2,92 3,00 3,05 3,09 2,93 3,16 3,07 3,22 3,22 3,17 3,22 Cooling capacity 2 [kw] 4,83 5,93 7,33 9,6 4,82 6,03 7,39 10,0 11,2 13,1 16,0 18,5 22,5 27,3 Power consumption 2 [kw] 1,98 2,44 3,29 3,91 1,94 2,31 2,99 4,03 4,46 5,00 6,27 7,64 8,43 11,1 EER 2 2,44 2,43 2,23 2,46 2,49 2,61 2,47 2,48 2,51 2,62 2,55 2,42 2,67 2,45 ESEER 1 2,97 3,02 2,77 2,91 3,07 3,26 2,97 2,99 2,85 3,09 2,97 2,84 3,12 2,89 Flow-rate 1 m 3 /h 1,16 1,43 1,79 2,20 1,15 1,42 1,72 2,29 2,55 2,96 3,68 4,21 5,06 6,14 Available pressure head 1 kpa Flow-rate 2 m 3 /h 0,83 1,02 1,26 1,65 0,83 1,04 1,27 1,72 1,93 2,25 2,75 3,18 3,87 4,70 Available pressure head 2 kpa Sound power [dba] Power supply V-N/Ph-Hz 230-1N N-50 No. of compressors No. of circuits Type of compressor Scroll No. of fans Air flow-rate [m 3 /h] No. of system heat exchangers Type of system heat exchanger PLATE System water heat exchanger content l (1) outside air 7 C; condenser water in/out 40/45 C (2) outside air 35 C; evaporator water IN/OUT 12/7 C (3) maximum and minimum operating pressure refer to activation of the pressure switches (4) Sound power based on measurements performed in accordance with ISO 9614 and Eurovent 8/1 Performance in accordance with EN 14511:2013 BRAT2 - BRAN2 EN 15

16 OPERATING LIMITS U Outside air temperature [ C] COOLING OPERATION WITH WATER-GLYCOL MIX Water outlet temperature at evaporator [ C] Operating range in COOLING Water temperature head min-max= 3-8 K Water circuit pressure min-max= 1-3 bars Max storage temperature= 63 C Maximum percentage of glycol= 40% As standard, the unit is manufactured with operating parameters allowing water produced at the evaporator down to +5 C. If needing to produce water down to -10 C, contact technical service. 60 HEATING Water outlet temperature at condenser [ C] Outside air temperature [ C] Operating range in heating Water temperature head min-max= 4-10 K Water circuit pressure min-max= 1-3 bars Maximum water temperature at system heat exchanger water inlet +50 C Max storage temperature= 63 C Maximum percentage of glycol= 40% 16 BRAT2 - BRAN2 EN

17 PRESSURE DROP AND PRESSURE HEAD AVAILABLE TO SYSTEM U SYSTEM HEAT EXCHANGER PRESSURE DROP, UNIT WITHOUT HYDRONIC KIT Pressure drop [kpa] System heat exchanger pressure drop Water flow-rate [m 3 /h] Pressure drop [kpa] System heat exchanger pressure drop Water flow-rate [m 3 /h] AVAILABLE PRESSURE HEAD, UNIT WITH HYDRONIC KIT Available pressure head [kpa] Available pressure head Water flow-rate [m 3 /h] BRAT2 - BRAN2 EN 17

18 PRESSURE DROP AND PRESSURE HEAD AVAILABLE TO SYSTEM U AVAILABLE PRESSURE HEAD, UNIT WITH HYDRONIC KIT Available pressure head [kpa] Available pressure head Water flow-rate [m 3 /h] Available pressure head [kpa] Available pressure head Water flow-rate [m 3 /h] The pressure head refers to the value available to the system. The pump installed on the unit, if the hydronic kit option is purchased as an accessory, is a circulator pump with built-in inverter, including water pressure transducer and microprocessor to manage the following control modes adjustment: The type of control can be set using the selector on the pump body. As standard, the type of control is set to CON- STANT ΔP. CONSTANT ΔP: the pressure differential between pump suction and discharge is kept constant, pump speed decreases progressively when the terminals close. VARIABLE ΔP: the pressure differential reduces as flowrate decreases, to account for the lower pressure drop along the piping running to the terminals (recommended for long sections of piping) VARIABLE ΔP CONSTANT ΔP (standard setting) 18 BRAT2 - BRAN2 EN

19 CHECKING AND STARTING UP THE UNIT PREPARING FOR FIRST START UP or restarting after shutting down for long periods. The unit must be started up for the first time by the Technical Service. Before starting up the units, make sure that: - All safety conditions have been respected; - The unit is adequately fixed to the surface it rests on; - Clearances have been respected - Water connections have been carried out as indicated in the instruction manual; - The water circuit is filled and vented. - The water valves are open; - Electrical connections have been carried out correctly - Voltage is within a tolerance of 10% of the rated voltage for the unit; - The unit is correctly earthed; - All electrical connections are tight and all water connections have been carried out correctly. The unit must be started up for the first time with standard settings. Set Point values may be modified only after testing has been completed. Before starting up, power up the unit for at least two hours by switching QF1 and QS1 ON (see "wiring diagram" and the control panel in standby) so as to allow the oil in the compressor sump to heat up. STARTING UP FOR THE FIRST TIME (after two hours) ON OFF Before starting the chiller: - Make sure the switch QF1 is in the OFF position. - Make sure the contact of the on/off device SA1 (see the wiring diagram) is open (if featured). - Close the door of the electrical panel. ON - Move the main unit switch QS1 to the ON position. OFF - Move the switch QF1 (outside the unit) to ON. - The icon with the off symbol ( ) lights up on the control panel, indicating power is connected. For the position of internal components, see the diagrams. A ACTIVATING AND DEACTIVATING THE UNIT ON OFF - Move the contact on the on/off device SA1 (if featured) to ON. During this phase, if the following indications appear on the display, follow the instructions: - ER20 check the water flow-rate and the connection of the flow switch. - ER01 (three-phase heat pumps only): check the power supply connection and if necessary reverse two phases. At every change of season, make sure the operating conditions fall within the limits specified. Make sure the current input of the compressor is less than the maximum shown in the table of technical specifications. Make sure the voltage is within the established limits and that, for three phase units, the unbalance between the phases is less than 2%. Check that the cover is closed again following the setting procedure To access the control panel, open the door: - remove the screw 1; - press the points 2 simultaneously and lift the door 3. esc set BRAT2 - BRAN2 EN 19

20 LEDS AND DISPLAY A 1 2 esc set 3 1 STATUS AND OPERATING MODE LEDS 2 VALUE AND UNIT OF MEASURE LEDS Alarm Heating Cooling Standby Clock Degrees centigrade Pressure (Bar) Menu (ABC) Defrost 3 UTILITY LEDS Compressor Fans System pump Frost protection heater system heat exchanger 20 BRAT2 - BRAN2 EN

21 SETTING THE CLOCK The HSW15 controller is fitted with a clock for managing time bands to control specific events. Follow the procedure shown below to set the hours, minutes and date. To set the clock of the unit, starting from the main display, press the set button. Pressing the set button once displays the various directories. Scroll the menu using the UP and DOWN buttons until reaching the directory CL. To enter menu CL press the set button. Once having entered this menu, HOUr will be shown. Select whether to set the time, date or year using the UP and DOWN buttons. Once having decided which value to set, press the [set]** button to enter the corresponding menu. **pressed and held for 3 around seconds. To set the time, date and year simply scroll with the UP and DOWN buttons until the desired value and BRAT2 - BRAN2 EN 21

22 ... press the set button. To exit the clock setting menu press the esc button until returning to the main display. 22 BRAT2 - BRAN2 EN

23 SCHEDULER SETTING The HSW15 controller can manage the unit based o the time and the day of the week. The controller features four time bands in three profiles that can be combined, when programming, with the days of the week. The profile defines the behaviour of the unit over a 24 hour period. Time band management must be enabled by parameter te00 = 1 (te00 = 0 standard setting). Programming example 1) Define the profile for each time band, as shown in the following table. Description Description Profile 1 Profile 2 Profile 3 Hour / Minutes hours 00 (te10=0) / min.00 (te11=0) hours 00 (te38=0) / min.00 (te39=0) te66..te67 Operating mode ON/Standby ON (te12=0) ON (te40=0) te68 TIME BAND 1 Cool set point te13=15 te42=15 te69 Heat set point te14=30 te42=30 te70 DHW set point te15=50 te43=50 te71 Hour / Minutes hours 6 (te17=6) / min.00 (te18=0) hours 7 (te45=6) / min.00 (te46=0) te73..te74 Operating mode ON/Standby ON (te19=0) ON (te47=0) te75 TIME BAND 2 Cool set point te20=12 te48=12 te76 Heat set point te21=33 te49=33 te77 DHW set point te22=45 te50=45 te78 Hour / Minutes hours 9 (te24=9) / min.00 (te25=0) hours 7 (te52=12) / min.00 (te53=0) te80..te81 Operating mode ON/Standby ON (te26=0) ON (te54=0) te82 TIME BAND 3 Cool set point te27=15 te55=12 te83 Heat set point te28=30 te56=33 te84 DHW set point te29=50 te57=45 te85 Hour / Minutes hours 17 (te31=17) / min.00 (te32=0) hours 17 (te59=17) / min.00 (te60=0) te87..te88 Operating mode ON/Standby ON (te33=0) ON (te61=0) te89 TIME BAND 4 Cool set point te34=12 te62=12 te90 Heat set point te35=33 te63=33 te91 DHW set point te36=45 te64=45 te92 Example of profile 1 to be used on opening days Example of profile 2 to be used on closing days 2) Associate one of the three programmed profiles with each day of the week. The days of the week are identified by the parameters te01 to te07; te01 = Monday, te02= Tuesday te07=sunday. Once having displayed the day of the week, te01 to te07, select the value 1, 2 or 3 corresponding to Profile 1, Profile 2 and Profile 3 respectively. Follow the operations shown below to program the profiles and combine them with the day of the week: To access directory te from the main display, press esc and set together. [esc+set]. Pressing these two buttons enters the menu with the list of directories. Use the up and down buttons to scroll to the directory PAr. Press the set button and use the up and down buttons to scroll to the directory te. Press the set button to display the first parameter, te00. Use the up and down buttons to scroll to the other parameters. To set the selected parameter, press the set button and enter the value using the up and down buttons. Confirm the changes by pressing the set button or alternatively cancel by pressing esc. BRAT2 - BRAN2 EN 23

24 SELECTING THE OPERATING MODE There are three different modes: Standby mode (StbY) Cooling mode (COOL) Heating only mode (HEAT) SETTING THE SET POINTS As an example, the Set Point in COOL mode will be changed from 12.0 degrees centigrade to 12.5 degrees centigrade. For example, to switch operation from StbY to COOL. To change the operating mode, press and hold the mode button for at least 2 seconds. To change the set point, starting from the main display, press the set button. Pressing the set button once displays the various directories. Scroll the menu using the up and down buttons until reaching the SP directory. A scroll menu will start flashing with the values StbY (standby) and COOL (cool). Use the up and down buttons to select the desired operating mode. To enter the SP directory press the set button. The unit will automatically return to the main display and the Stby LED, previously on, will now be off and the COOL LED will be on. The active mode will be displayed (COOL). Taking the example of changing the set point for the operating mode. Press the SET button. 24 BRAT2 - BRAN2 EN

25 SETTING THE PARAMETERS Accessing the PASS directory (from the main display, pressing the esc and set buttons together [esc+set] and scrolling to the directory with up / down) and setting the PASS accesses the parameters visible for the password entered. The instrument will display the current set point (in this case 12.0 degrees centigrade). To increase or decrease the value, use the up and down buttons. For example, to change the set point to 12.5 degrees, press the up button until the desired value is displayed. To access the PASS directory from the main display, press esc and set together [esc+set]. Once having reached the desired set point, press the set button. In this way, the instrument will save the value Pressing the two buttons accesses the menu listing the directories. Scroll using the up and down buttons to the PASS directory. To return to the main display, press esc or wait for the menu timeout to expire (15 seconds). To enter the PASS directory press the set button. Then enter the password (installer or manufacturer), press set and exit. Access the parameters to display or change the values. Press the up and down buttons to select the Par submenu. Press the set button to display the desired directory. BRAT2 - BRAN2 EN 25